Au Gratin Potatoes - cooking recipe

Ingredients

2 lb. potatoes
1 medium onion, chopped
1/4 c. margarine
1 Tbsp. flour
1 tsp. salt
1/4 tsp. pepper
2 c. milk
2 c. sharp Cheddar cheese, grated
1/4 c. bread crumbs

Preparation

Peel and cut potatoes into thin slices.
Cook and stir onion in margarine in 2-quart saucepan until onion is tender.
Cook over low heat, stirring constantly until mixture is bubbly.
Remove from heat.
Stir in milk and 1 1/2 cups of the cheese.
Heat to boiling, stirring constantly.
Boil and stir for 1 minute.
Place potatoes in 1 1/2-quart casserole.
Pour cheese sauce over potatoes.
Cook, uncovered, in 325\u00b0
oven for 1 hour and 20 minutes.